Patents by Inventor Dacon C. Laird, III

Dacon C. Laird, III has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4619669
    Abstract: A method is disclosed for upgrading run-of-the-mine (ROM) lignites to remove the gangue (clays, rock etc.) which form ash when the lignite is burned. The unique features of the process, a combination of unit operations in a specified sequence, result in less loss of combustible fuel value without hydrodegradation (the production of a large volume of fines) normally associated with contact of the lignite with water as in pipeline transport of lignite.
    Type: Grant
    Filed: November 23, 1984
    Date of Patent: October 28, 1986
    Assignee: The Dow Chemical Company
    Inventors: Elvis E. Jones, Terry A. Pearce, Dacon C. Laird, III, James H. Everitt